This is a strange analogy to introduce this dilemma, the light spilling into the neighbour's reading room costs the lamp owner nothing. If I use my neighbour’s

This is a strange analogy to introduce this dilemma, the light spilling into the neighbour's reading room costs the lamp owner nothing. If I use my neighbour’s WIFI, I degrade their usage and may force them to pay additional money to upgrade to a higher bandwidth or an uncapped plan.